Demountable rim



June 26, 1928. 1,674,788

J. L. MURPHY DEMOUNTABLE RIM Filed May 1925 Q I I I 1 Patented June 26, 1928.. I 1

NETELDSTAFE. @"FFEQE.

JAMES L. MUEPI-IY, or MISEAWAKA, INDIANA.

DEMQUN'I'ABLE nnu.

Application filed May 7, 1923. Serial in. 637,219.

This invention relates to a demountable clearly in Fig. 2, being equipped with the rim for vehicle wheels of the type employusual dust cap and lock nut 15. ing a. felloe band made fast to the wheel The portion of the felloe band 5 which felly and an outer demountable tire carryprojects beyond the felly 2 is equipped with 5 ing rim which is slipped over the felloe a plurality of peripherally spaced obliqueband and secured thereto by a securing 1y disposed slots 6 opening through. One mechanism. edge of said rim which are designedto re- The object of the invention is to provide ceive correspondingly shaped lugs 16 cara strong and efficient felloe band of this ried by the inner face of the demountcharacter, the members of which are fiangeable rim 10. Three of these lugs are here less and which is equipped with a. bolt and shown although obviously any desired num so constructed that there is no strain on her may be shown and when said lugs are the bolt and which does not require the entered in the slots 6, the demountable rim use of a set screw. and felloe bandwill be held against ro- Another object is to simplify and perfect tary movement relative to each other and To the securing mechanism for the demountare secured in this position by means pres able rim and to this end said rim is pr0- ently to be described. vided with wedge like cam lugs which in- The felloe band 5 is further equipped t-erlock with cooperating slots in the felloe with an elongated'slot 7 which extends to band and assist in holding the demountable a point opposite the periphery of the folly rim rigidly in place. 2, said felly being cut away as shown at 3 The invention further comprises novel in one side wall to receive the valve stem means for interlocking the felloe band and 1 1 when the tire is applied to the wheel. demountable rim against relative rotary The reference character 8 designates a plate movement and the several details of condesigned to it over the felloe 2 and is struction and arrangement of parts, all of formed with an opening in that part thereof which are hereinafter more particularly overlying the inner perimeter of the felloe. described and claimed reference being had The openingin the plate 8 registerswith the to the accompanying drawings which ilslot 7 in the felloe band which in turn lustrate the preferred embodiment of the registers: with the aperture 17 formed in 35 invention in which: the outer section 10. These registering Figure 1 represents a side elevation of openings accommodate the valve stem 1a. a. wheel equipped with th s invention. This plate 8 operates to close the notch or Fig. 2 is a detail section taken on the line recess in the felly 2 the flange 9 of said 2-42. of Fig. 1 plate fitting down flat against the outer m Fig. 3 is a similar View taken on the line side edge or face of the felly and over the 3-3 of Fig. 1, valve stem 1 1 as is shown clearly in Fig. 2.

Fig. a is a detail section taken on the Opening from one side wall of the slot '3 line 4r-h of Fig. 1; and on the inner face of felloe band 5 is recess 40 Fig. 5 is a. detail sectional view through 18 designed in connection with a recess 19 the rim sections and the felly of the wheel, in the lug 20 of section 10 to form seat to the tire being removed. receive alocking plate 25 which is apertured In the embodiment illustrated the rim for the passage therethrough of a bolt 26. constituting this invention comprises an. The lug 20 carried by the demountable inner felly band 5 and an outer demountrim 10 is designed to fit in the slot 7 and able rim 10 which are arranged one withhas its inner end concave to cooperate with in the other and detachably and interlockthe rounded end of slot? to receive the valve ingly engaged by means presently to be destem 14. scribed. The demountable rim 10 as shown In the use of this deinountable rim the 50 is equipped with clincher flanges 11 for felloe band 5 is fixedly secured to the telly 1 securing a clincher casing 12 thereto, the 2 by rivets, belts or otherwise with the slots usual inner tube 13 being employed and 6 and 7 therein exposed so that when the equipped with the regulation valve stem 14; outer felloe band 10 is slipped over section which is designed to extend through the 5. the lugs 16 and 20 thereof will enter these tire sections and the felly 2 as is shown slots and securely connect the demountable operate to hold the rim and felloe band. It is of course under stood that the slot 7 receives the valve stem 14 during this assembly.

After the parts are so positioned the plate 8 is slipped over the valve stem 14: in the position shown in Fig. 2 and the lock nut 15 and dust cap 15 are applied and which plate in position. v

The plate 25 is then placed over the bolt 26 overlyingthe recessed end 01 lug 20 and fitting snugly inthe seat forn'ied in said lug and the adjacent portion of :lel'loe band 5 I and is secured in position by a nut 27.

then be slipped laterally off the felloe hand- 5 and another demountable rim-1O carrying an inflated tire substituted. It is of course understood that all of the Wheels of the vehicle are equipped with these demo-untable rims and the extra tire carried is equipped with: the demountable rim 10 so that it may be readily substituted for any of the others hen necessary.

Various changes in the form, shape, proportion and other minor details of construction may be made Without departing from the principle or sacrificing any of the advantages of the claimed invention.

I claim V v In a Wheel construction, a -lelloe, a felloe band secured to the telloe, a die-mountable rim having a portion thereof cut away to permit the demountable rim to be positioned over the felloe band, the 'felloe band having a plurality of spacedobliquely disposed slots extending from one edge thereof, diagonally disposed lugs of Widths to closely lit Within the slots formed on the demo-unta-ble F1111 to lock the demountable rim and tel-lee band together, the t'elloe band having a'vailvereceivin'g slot, one of the lugs having a recess formedadj acent to the o uter-end thereof and registering with a recess formed in the 'iel'lo'e band, a securing plate positioned in the reg istering recesses to further lock thetel'lo-e band and demountable together, and a bolt extending through the felloe hand and plate to lock the plate in position.

In testimony that I claim the fore oing p, as my own, I have hereto afnxed' ture.

JAMEs L. MURPHY.

my signa- 

